A feeding device for metal pipe fittings

Abstract

This utility model relates to the field of metal pipe processing technology, specifically a feeding device for metal pipes, including a support frame and two sets of upper support plates fixed on the support frame. A limiting clamping assembly is installed on the upper support plates. This feeding device for metal pipes utilizes the inclined design of the sloping hopper to allow square metal tubes to automatically slide and accumulate under gravity, replacing manual feeding and reducing the workload of workers. When the lifting part on the side plate drives the upper push plate upward, its top inclined right-angled opening precisely matches the right-angled edge of the bottom of the square tube, ensuring the accurate posture of the square tube at the outlet of the sloping hopper and providing a foundation for subsequent transfer. The pushing part pushes the long plate to extend the insertion plate above the sloping hopper, inserting it below the square tube. The upper cylinder then lifts and supports the plate as it retracts. With the help of the limiting clamping assembly, the square tube stops at a designated position. Finally, it is clamped by the clamping cylinder and transferred to the next process for pressing, grinding, and polishing. Therefore, this device improves efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of metal pipe processing technology, specifically to a feeding device for metal pipes. Background Technology

[0002] In modern industrial production, metal square tubes, as a widely used hollow cube steel material, play a key role in many fields such as construction, machinery manufacturing, and automobile industry. In the processing of metal square tubes, grinding and polishing of the tube ends are essential steps.

[0003] Currently, the industry generally uses manual feeding to fix square tubes onto clamping devices. This traditional manual feeding method has many drawbacks. Not only is the work efficiency low and unable to meet the ever-increasing production demand, but it also puts workers in a state of high-intensity labor for a long time. The high labor intensity and fast pace can easily lead to fatigue. More seriously, during the manual feeding process, workers need to frequently come into close contact with mechanical equipment, which poses a significant personal safety hazard. A slight carelessness may lead to a safety accident. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: a feeding device for metal pipe fittings, comprising a support frame and two sets of upper support plates fixed on the support frame, wherein a limiting clamping assembly is installed on the upper support plates, a top feeding assembly is installed at the front end of the support frame, and two sets of transfer assemblies are installed between the two upper support plates.

[0005] The top-feeding assembly includes multiple side support plates, with inclined hoppers fixed between the side support plates, and side plates fixed between some of the side support plates. A lifting part is installed on the side plate, and multiple push plates that pass through the inclined hopper are installed on the lifting part. The top of the push plate has a right-angled opening in an inclined state.

[0006] The transfer assembly includes two sets of opposing plates. A pushing part is installed on the opposing plates, and a long plate is installed on the pushing part. An upper-lifting cylinder is installed on both ends of the long plate. A connecting plate is fixed to the piston rod of the upper-lifting cylinder. A clamping cylinder is installed on the side of the connecting plate. An insert plate that can extend to the top of the inclined hopper is fixed to the top of both sets of connecting plates.

[0007] Furthermore, the lifting part includes a lower lifting cylinder fixed to the side plate, and a T-shaped plate slidably connected to the side plate and fixed to the piston rod of the lower lifting cylinder, and the upper push plate is fixed to the side plate.

[0008] Furthermore, the pushing part includes a pushing cylinder installed at the bottom of the shifting plate, a pushing plate with an adjustment hole and a pushing plate that slides on top of the pushing plate, is located in the adjustment hole and fixed to the piston rod of the pushing cylinder, and the long plate is fixed on the pushing plate.

[0009] Furthermore, the limiting and pressing assembly includes a horizontal pad and a vertical pad fixed on the upper support plate. The top of the upper support plate is also fixed with a side block near the horizontal pad and a side frame near the vertical pad. A limiting cylinder is installed on the side block, and a limiting block is fixed at the top end of the limiting cylinder. A pressing cylinder is installed on the side frame.

[0010] Furthermore, the first ends of both the horizontal and vertical pads are sloped.

[0011] Furthermore, a belt-driven double screw drive device is installed on the support frame, and the bottoms of the two opposing plates are respectively fixed to the nut ends of the belt-driven double screw drive device, and the opposing plates are slidably connected to the support frame.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] The feeding device for this metal tube uses an inclined hopper design to allow the square metal tubes to automatically slide and accumulate under gravity, replacing manual feeding and reducing the workload of workers. When the lifting part on the side plate drives the upper push plate to move upward, its inclined right-angled opening at the top precisely matches the right-angled edge of the bottom of the square tube, ensuring the accurate posture of the square tube at the outlet of the inclined hopper and providing a foundation for subsequent transfer. The pushing part pushes the long plate to extend the insertion plate above the inclined hopper, inserts it under the square tube, and then is lifted and supported by the upper cylinder to retract. With the help of the limiting and clamping components, the square tube stops at the designated position. Then, it is clamped and transferred by the clamping cylinder to the next process for pressing, grinding and polishing, thus improving efficiency and safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the top-feeding component in this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the transfer component in this utility model.

[0017] In the diagram: 1. Support frame; 2. Top conveying assembly; 21. Side support plate; 22. Side plate; 23. Inclined hopper; 24. Lower top cylinder; 25. T-shaped plate; 26. Upper push plate; 3. Belt-type double screw drive device; 4. Transfer assembly; 41. Transfer plate; 42. Adjustment hole; 43. Push cylinder; 44. Push plate; 45. Long plate; 46. Upper top cylinder; 47. Insert plate; 48. Clamping cylinder; 49. Connecting plate; 5. Horizontal pad; 6. Side block; 7. Limit cylinder; 8. Limit block; 9. Vertical pad; 10. Side frame; 11. Lower pressure cylinder; 12. Upper support plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This embodiment of a feeding device for metal pipe fittings includes a support frame 1, with two sets of upper support plates 12 fixed to the top of the support frame 1, and a top feeding component 2 installed at the front end to push the square tube upwards. Two sets of transfer components 4 are installed on the inner side of the support frame 1 between the two sets of upper support plates 12. Limiting and pressing components are installed on the upper support plates 12. The transfer components 4 can transfer the square tube to the upper support plates 12, and the limiting and pressing components can make the square tube stop at a designated position. Then, the transfer components can transfer it to another process for pressing.

[0020] In the above structure, the square tube is placed in the top feeding assembly, which pushes the square tube to a designated height to achieve the feeding operation. Then, the transfer assembly pushes it below the square tube to support it. During the retraction process, the square tube is limited by the limiting and pressing assembly to position it in a designated location. Then, through the reciprocating operation of the transfer assembly, the square tube can be transferred to the pressing position of the limiting and pressing assembly for grinding and polishing. Therefore, by automating the feeding and transfer to the designated position, the processing efficiency and worker safety can be improved.

[0021] like Figure 2 The top-feeding assembly 2 includes four sets of side support plates 21 installed at the head end of the support frame 1. The head end of the side support plate 21 forms a protruding inclined end. An inclined hopper 23 is fixed between the protruding inclined ends of the side support plate 21. The bottom of the inclined hopper 23 is provided with a discharge port, and the inner side forms a slope that slopes downwards towards the discharge port to ensure that the square tube can slide smoothly without shaking. A side plate 22 is fixed between two side support plates 21. A bottom-lifting cylinder 24 is installed on the back of the side plate 22, and a T-shaped plate 25 is slidably connected to the front and fixed to the piston rod of the bottom-lifting cylinder 24. Five sets of upward-pushing plates 26 are fixed on the cross section of the T-shaped plate 25. The upward-pushing plates 26 can extend through the discharge port into the inclined hopper 23 to lift the square tube. An inclined right-angled opening is provided on the top of the upward-pushing plate 26, and the width of the opening matches the right-angled side of the square tube.

[0022] The inclined hopper and discharge port design utilize gravity to allow the square tube to automatically slide down to the discharge port without additional power, reducing energy consumption. Simultaneously, the inclined inner wall prevents the square tube from accumulating or jamming within the hopper. A lower cylinder drives the T-shaped plate and upper push plate to rise vertically; the linear motion ensures the square tube is smoothly lifted, preventing swaying or tilting. This allows the square tube to be delivered to the designated height quickly, meeting the demands of high-speed production. The inclined right-angled opening at the top of the upper push plate precisely matches the right-angled side of the square tube. When the square tube is lifted, the right-angled side engages with the opening, forming a mechanical limit and preventing horizontal displacement or overturning during the ascent. This design is particularly suitable for processing steps requiring high positioning accuracy, enabling automatic feeding of the square tube without frequent manual handling or placement. This reduces the chance of workers coming into contact with moving parts of the equipment, lowering the risk of workplace injuries due to misoperation or equipment malfunction, and complying with industrial production safety regulations.

[0023] like Figure 3 The transfer assembly 4 includes two sets of opposing plates 41 installed inside the support frame 1 and located between two sets of upper support plates 12. The opposing plates 41 are provided with adjustment holes 42 and push cylinders 43 are installed at the bottom. The piston rod of the push cylinder 43 is fixed with a push plate 44 that slides through the adjustment holes 42 and the surface of the opposing plates 41. A long plate 45 is installed on the top of the push plate 44. The front and back of the first and last ends of the long plate 45 are both equipped with upper cylinders 46. The piston rod of the upper cylinder 46 is fixed with a connecting plate 49. A clamping cylinder 48 is installed on the side of the connecting plate 49 opposite to the long plate 45. The connecting plate 49 is L-shaped, and the top of the two sets of connecting plates 49 at the first end is fixed with an insert plate 47 that can extend to the top of the inclined hopper 23.

[0024] Once the aforementioned push plate lifts the square tube to a designated height, the push cylinder moves the push plate until the insert plate is below the square tube. At this point, the push cylinder operates, causing the connecting plate to move upward. Thus, the square tube can be lifted by the insert plate. The clamping cylinders at the beginning and end clamp the square tubes corresponding to the upper support plate. Through the reciprocating push of the push cylinder, the square tube can be moved to the middle. The square tube in the middle is moved to the end, and the square tube at the end is removed and collected, thereby completing the transfer of the square tube.

[0025] like Figure 1The limiting and pressing assembly includes a horizontal pad 5, a side block 6, a side frame 10, and a vertical pad 9 located below the side frame 10, which are fixed to the first and last ends of the two sets of upper support plates 12 respectively. The vertical pad 9 has a slope on the side facing the first end. A limiting cylinder 7 is installed on the side block 6. The piston rod of the limiting cylinder 7 is fixed with an L-shaped limiting block 8. A pressing cylinder 11 opposite to the vertical pad 9 is installed at the bottom of the side frame 10. The square tube is lifted by the insert plate in the transfer component. When it retracts, the limit cylinder drives the limit block to push down, and the square tube is moved to the top of the horizontal pad and blocked by the limit block. During the reciprocating process, the clamping cylinder at the first end clamps the square tube that is on the horizontal pad. The limit cylinder retracts, so it can move the square tube to the vertical pad. By running the pressing cylinder, the two ends of the square tube can be pressed down and positioned, so it is easy to grind or polish the two ends, thereby achieving the limiting and pressing.

[0026] like Figure 1 The inner side of the support frame 1 is equipped with a belt-driven double lead screw drive device 3, which includes two sets of lead screws connected by a belt pulley. One of the lead screws is connected to a drive motor. Nuts on the two sets of lead screws are fixed to two sets of opposing plates 41, which are also slidably connected to the support frame 1. The drive motor rotates one of the lead screws, which, in conjunction with the belt drive, causes the two sets of opposing plates to move relative to or away from each other. This allows for adjusting the distance between the opposing plates to match the length of the square tube for material handling.

[0027] The working principle of the above embodiments is as follows:

[0028] The inclined hopper design utilizes gravity to automatically slide the square tube into the feed inlet. The inclined inner wall prevents the square tube from accumulating and getting stuck. No additional power is required, reducing energy consumption. The lower cylinder drives the T-shaped plate and the upper push plate to rise vertically. The linear motion ensures that the square tube is lifted smoothly. The inclined right-angled opening at the top of the upper push plate matches the right-angled side of the square tube, forming a mechanical limit to prevent displacement or overturning of the square tube during ascent. The upper push plate lifts the square tube to a designated height, preparing it for subsequent transfer components to receive material. The push cylinder drives the push plate to move, positioning the insert plate below the square tube. The upper cylinder drives the connecting plate to move upward, supporting the square tube through the insert plate. Simultaneously, the end clamping cylinders clamp the square tube on the horizontal and vertical pads on the upper support plate. The push cylinder reciprocates, moving the square tube according to... The square tube is then transferred to the middle and rear sections, with the rear section being removed and collected. This process facilitates the transfer of square tubes between different processes. A belt-driven double screw drive unit rotates the screws via a drive motor, which, in conjunction with belt transmission, causes two sets of opposing plates to move relative to or away from each other. The spacing is adjusted according to the length of the square tube to accommodate different specifications of pipe fittings. When the transfer component retracts, a limit cylinder drives an L-shaped limit block to push down, blocking the square tube above the horizontal pad. A head-end clamping cylinder clamps the square tube on the horizontal pad. The limit cylinder retracts, moving the square tube to the vertical pad. A pressing cylinder presses down and positions both ends of the square tube, facilitating grinding, polishing, and other processing operations at both ends. This ensures precise processing positions, thus improving efficiency and reducing manual intervention while providing safety through automation.

[0029] The entire workflow is now complete, and anything not described in detail in this specification is existing technology known to those skilled in the art.

[0030] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for metal pipe fittings, characterized in that: It includes a support frame (1) and two sets of upper support plates (12) fixed on the support frame (1). A limit clamping assembly is installed on the upper support plate (12). A top conveying assembly (2) is installed at the first end of the support frame (1), and two sets of transfer assemblies (4) are installed between the two upper support plates (12). The top feeding assembly (2) includes multiple side support plates (21), an inclined hopper (23) is fixed between the side support plates (21), a side plate (22) is fixed between some of the side support plates (21), a lifting part is installed on the side plate (22), and multiple push plates (26) that pass through the inclined hopper (23) are installed on the lifting part. The top of the push plate (26) has a right-angled opening in an inclined state. The transfer assembly (4) includes two sets of opposing plates (41). A pushing part is installed on the opposing plate (41), and a long plate (45) is installed on the pushing part. An upper cylinder (46) is installed on both the front and rear sides of the long plate (45). A connecting plate (49) is fixed to the piston rod of the upper cylinder (46). A clamping cylinder (48) is installed on the side of the connecting plate (49). An insert plate (47) that can extend to the top of the inclined hopper (23) is fixed on the top of both sets of connecting plates (49).

2. The feeding device for metal pipe fittings according to claim 1, characterized in that: The lifting part includes a lower lifting cylinder (24) fixed on the side plate (22) and a T-shaped plate (25) slidably connected to the side plate (22) and fixed to the piston rod of the lower lifting cylinder (24). The upper push plate (26) is fixed on the side plate (22).

3. The feeding device for metal pipe fittings according to claim 1, characterized in that: The pushing part includes a pushing cylinder (43) installed at the bottom of the shift plate (41), an adjustment hole (42) provided, and a pushing plate (44) with a top sliding surface located in the adjustment hole (42) and fixed to the piston rod of the pushing cylinder (43). The long plate (45) is fixed on the pushing plate (44).

4. The feeding device for metal pipe fittings according to claim 1, characterized in that: The limiting and pressing assembly includes a horizontal pad (5) and a vertical pad (9) fixed on the upper support plate (12). The top of the upper support plate (12) is also fixed with a side block (6) near the horizontal pad (5) and a side frame (10) near the vertical pad (9). A limiting cylinder (7) is installed on the side block (6). A limiting block (8) is fixed at the top end of the limiting cylinder (7). A pressing cylinder (11) is installed on the side frame (10).

5. The feeding device for metal pipe fittings according to claim 4, characterized in that: The first ends of both the horizontal pad (5) and the vertical pad (9) are sloped.

6. The feeding device for metal pipe fittings according to claim 1, characterized in that: The support frame (1) is equipped with a belt-driven double screw drive device (3), and the bottoms of the two opposing plates (41) are respectively fixed to the nut ends of the belt-driven double screw drive device (3), and the opposing plates (41) are slidably connected to the support frame (1).

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